Results 221 to 230 of about 42,604 (255)

Protective Effects of Er:YAG Laser and PRG Pro‐Care Gel on Enamel Demineralization

open access: yesLasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives Bioactive surface pre‐reacted glass‐ionomer (S‐PRG) technology and high‐power laser irradiation have been investigated as promising preventive approaches. S‐PRG particles exhibit multifunctional bioactive glass properties, with the ability to release and recharge ions.
Joice Pequeno‐da‐Silva   +3 more
wiley   +1 more source

Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel

open access: yesMaterials and Corrosion, EarlyView.
Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković   +7 more
wiley   +1 more source

No exotic matter in asteroids. [PDF]

open access: yesEur Phys J Plus
Rubin AE, Burbine TH.
europepmc   +1 more source

Characterization of Dental Composite Resin with Additional TiO2 Nanoparticle Filler

open access: yesMacromolecular Symposia, EarlyView.
Silanized SiO2‐based dental composite resins with and without TiO2 nanoparticle addition were fabricated using a Bis‐GMA/TEGDMA resin matrix and photopolymerized under 468‐470 nm UV light. The resulting composites, composite I (55% SiO2) and composite II (50% SiO2 + 5% TiO2), were characterized via scanning electron microscopy (SEM), Fourier transform ...
Siti Fauziyah Rahman   +4 more
wiley   +1 more source

Mineralogical evidence for hydrothermal alteration of Bennu samples. [PDF]

open access: yesNat Geosci
Zega TJ   +72 more
europepmc   +1 more source

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